NGSUtils is a suite of software tools for working with next-generation sequencing datasets. Staring in 2009, we (Liu Lab @ Indiana University School of Medicine) starting working with next-generation sequencing data. We initially started doing custom coding for each project in a one-off manner. It quickly became apparent that this was an inefficient manner to work, so we started assembling smaller utilities that could be adapted into larger, more complicated, workflows. We have used them for Illumia, SOLiD and 454 sequencing data. We have used them for DNA and RNA resequcing, ChIP-Seq, CLIP-Seq, and targeted resequencing (Agilent exome capture and PCR targeting). These tools are also used heavily in our in-house DNA and RNA mapping pipelines.